Purifier and roller-mill feeding-machine



No 625,037. Paten ted May I6, [89 9. F. C. KUKE.

PURIFIER AND ROLLER MILL FEEDING MACHINE.

(Application filed May 17, 1898.)

(No Model.)

11v VEN TOR,-

WITNESSES.

, At/orneys UNITED STATES PATENT OFFICE.

FRED C. KOKE, OF MANKATO, MINNESOTA.

PURIFIER AND ROLLER- MlLL FEEDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,037, dated May 16, 1899.

Application filed May 17,1898. Serial No. 680,932. (No model.)

To all whom, it may concern:

Be it known that I, FRED O. KOKE, a citizen of the United States, residing at the city of Mankato, in the county of Blue Earth and State of Minnesota, have invented a new and useful Purifier and Roller-Mill Feeding-Machine, of which the following is a specification.

This invention relates to mills, and more especially to that class of devices thereunder known as feed-regulators; and the object of the same is to produce certain improvements in machines and attachments of this character no matter to what kind of mills they are attached or connected.

To this end the invention consists in the details of construction hereinafter more fully described and claimed and as illustrated in the accompanying drawings, wherein- Figure 1 is a longitudinal section of the device complete, showing it in single form and arranged for use in connectionwith a rollerfeed. Fig. 2 is a similar section showing the device in double form and arranged for use in connection with a vibratory feed or shoe. Fig. 3 is a perspective detail of the bodilyshiftable shaft and the lever for moving it.

In'the said drawings, A is one of the ends,

and O are the sides, of the framework of the entire device, while 0 is the cover thereof, hinged to strip d, if preferred, there being two such sides 0 if the device is in single form, as in Fig. 1, or three sides if double, as in Fig. 2, in which case the central side piece 0 would form a sort of partition and would not extend clear to the bottom, as do the other sides; but as the double form (with this exception and the further exception, explained below, of parts which cooperate therewith) is but a duplicate of the single form an explanation of the latter will suffice for both. Se-

cured within and forminga fixed part of the framework are the longitudinal bars D and E,-constructed either substantially as herein shown or in any other equivalent manner, all preferably of wood and of about the relative proportion shown. v p

F designates the hanging lid, hinged, as at b, to the bar D and standing normally about in alinement therewith and oblique to the vertical length of the body, and the lower edge of this lid stands closely in'proximity-to the upright side 0 if the machine is single, or

the central piece 0 if it is double, so as to leave an opening Q for the passage of feed in the operation of the whole.

G is the chute, extending from the side 0 (or central piece C) obliquely downward and out ward therefrom at substantially right angles to the length of the lid F and delivering to the feeding device, which is either a roller, as indicated at H, or a vibratory shoe, as in dicated at R S, the latter moved in any well known manner, forming no part of the pres= ent invention, and the former being rotated from any suitable source of power. (Not shown.)

Moving in guides a, carried by the frame work, is a gate T, whose lower edge is adapted to rest upon or be raised above the feeding device, whether the latter is roller or shoe,

and V is a longitudinal shaft having lateral arms W, loosely connected with said gate, so

that the oscillation of the shaft adjusts the upright position of it.

X X designate L-shaped or bell-crank levers pivoted at their angles, as at Y, to the ends of the framework and in one of whose arms the ends of the shaft V are journaled,

ative position in connection with the feeddevice. The connection between said lid and gate is preferably that now to be described. From the shaft V project levers M and N, the former provided with a series of holes m, and into one of these takes the lower end of a spring L, from which in turn'leads a rod 70, passing upward through the bar E and threaded for the reception of a thumb-nutP in order that the tension of said spring may be adjusted.

This spring tends to raise the lever M and de bear the gate T onto the feed device. Said lever N, however, passes through the shaft V, (where it may be adjustably mounted therein by set-screw 02,) and at its upper end is connected by a rod or link 0 with the lid F, as

press the arms W and, through the latter, to

shown in the drawings, and hence the swing I ing open of the lid tends to raise the gate for a purpose to appear below.

In the operation of this improved device the feed flows through a spout (not shown) and enters through a hole in the cover 0 and falls on the lid F. Obviously if the machine is in double form it will fall to one or both sides of the central piece 0, but the operation on either side thereof is the same and a description of one will suffice. Sliding down on the lid it passes through the opening Q and strikes the inclined chute G, whereon it falls against the feed device whether the latter be a roller or a shoe, and its passage thereover is regulated by the rise of the gate T resting thereon; but as the movements of this gate are controlled by those of the lid F it will be clear that as the latter swings open to a greater degree the former will also rise to a greater degree through the connections described, and hence the machine automatically clears itself and prevents choking of parts. At the same time the various adjustments described per- Init the operator to regulate the coacting movements of parts as may be desired and to attain the greatest efficiency of the machine. After such regulation and during the operation of the whole, in order that it may not be necessary to open the casing or framework to ascertain the relative movement of parts, I preferably arrange an indicator h, of any approved pattern, located at some convenient point on the exterior of the framework, as shown, and the hand or index of this indicator is connected by a rod or chain hwith some movable part of the device, such as the lever M, in such manner that the least movement of the gate T (and hence the lever) will be indicated on the dial. This, however, I consider a detail of construction not necessary to, though advisably used in connection with, the other elements of my invention.

Other details may be employed without necessarily departing from the principle of my inventionsuch, for instance, as the door g, closing an opening through which access may be had to the interior for the purposes of inv viously necessitating the use of mechanism for giving it the proper motion, as not necessarily herein illustrated or described.

While any other suitable means might be employed for supporting the shoe or chute R S, I have shown in Fig. 2 supporting rods, bars, or wires Su, leading upward from the shoe through the cover and receiving adj usting thumb-screws P above the latter, and said shoe is herein reciprocated or swung on such supports from an eccentric Ec through a pitman-rod Pm, connecting the band on the cocentric with a pin I on the shoe.

What is claimed as new is- 1. In a feed-regulator for mills, &c., the combination with a framework, an inclined swinging lid therein, a fixed side with which the free end of the lid cooperates, and a chute beneath the delivery end thereof; of a feed device to which the chute delivers, a gate moving in slides over the same, a rock-shaft connected with said gate, means for bodily adjusting the position of this shaft, a lever adjustable through this shaft, a set-screw for holding the lever in adjusted position, and a link connecting said lever with the lid, as and for the purpose set forth.

2. In a feed-regulator for mills, &c., the combination with a swinging lid cooperating with a fixed upright side of the casing, a feed device, a gate, and a rock-shaft; of levers projecting from the latter, connections between one of them and the lid for causing it to open and close in unison with the gate, a spring attached to the other lever for normally closing the lid and gate, means for adjusting the tension of this spring, arms projecting from the shaft and engaging the gate, and means for bodily adjusting the position of the shaft while still permitting its oscillation, all as and for the purpose set forth.

3. In a feed-regulator for mills, 850., the combination with a framework, a lid swinging in connection with a fixed side thereof, the feed device, a gate moving in connection with the latter, andguides for the gate; of a rock-shaft, arms projecting therefrom and engaging the gate for moving the latter, two levers also projecting at substantial right angles from the shaft, a link connecting one lever with the lid for opening and closing the same in unison with the gate, and a spring sustaining the other lever for normally closing both, each and all as and for the purpose set forth.

FRED O. KOKE.

Witnesses:

GEO. I-IABERLE, ADOLPH O. EBERHART. 

